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Install Dirty Unicorns Android 8.1 Oreo Firmware on Samsung Galaxy S7

Do you want to improve the Android functionality on your Samsung Galaxy S7? If you want that while using the latest Android 8.1 Oreo firmware, we might have the perfect update opportunity for you: installing the Dirty Unicorns custom ROM software. If you want to learn more about this new OS, don’t hesitate and check out the guidelines from below; there you can also review the advantages of using this ROM, the risks implied and the essential pre-requisites that must be first applied.

Dirty Unicorns is a popular custom ROM firmware developed by xda senior member PureEnergyy, so we must thank him for this new Android 8.1 Oreo update opportunity that’s available for the Samsung Galaxy S7. The ROM is packed with new features, apps and capabilities which cannot be found on the stock Android OS that runs on your SGS7. With the help of these extra features you can afterwards choose to customize, optimize and personalize the overall Oreo functionality in order to receive better results from your device.

Bottom line, with the Dirty Unicorns custom ROM installed your Samsung Galaxy S7 should run better than before. The ROM is stable and smooth, light and fast. Once the firmware is flashed the battery life will be improved and general performance upgraded. Also, the speeds will be increased and the Samsung UX replaced with a new and custom UI. As you can see, this ROM is designed to offer a lot more than the built-in Android system.

But, you should choose to replace the stock Android OS with the Dirty Unicorns custom ROM only if you are an experienced Android user. This update process is not supported by Samsung or by Google and that’s why you are going to lose your Galaxy S7 warranty. Also, access to built-in apps might be lost if you choose to resume the steps from below. Note: if needed, you can restore the warranty flag but only by choosing to reinstall the official Android OS, an operation that can be completed from Odin.

Additionally, during the flashing process described below a wipe will be required – you will have to hard reset your Galaxy S7 and clear app data cache as otherwise the new Android 8.1 Oreo firmware won’t run properly. That’s why we must discuss about a backup now. Without it you will most likely lose everything that means something for you: the contact list, call logs, texts, images, videos, audio files, market apps, EFS folder, internet settings, calendar info, saved passwords, IMEI / NVRAM data and similar other packages. Such general backup process can be applied in different ways: by syncing files with your Google account, by using Samsung’s own cloud storage platforms and by downloading already tested backup and restore apps from Google Play.

And since an unofficial update will be used, you should be precautious and secure your current Android OS that runs on your Galaxy S7. That can be done by initiating a Nandroid backup. Afterwards, after testing the Dirty Unicorns custom ROM you can choose to go back to stock easily, by using the Nandroid backup package.

You can install the Android 8.1 Oreo custom ROM on your Samsung Galaxy S7 only if your smartphone is rooted and installed with a custom recovery image. The root process is required for preparing the stock Android OS for the custom update operation – the root process will unlock your device. Then, the custom recovery image will be the environment through which you will be able to flash the actual firmware package. In that respect I recommend you to use the latest version of TWRP recovery.

Since the steps from below are describing a manual update process, it’s important to review the essential pre-requisites now:

  • You have to use a computer or a notebook and your phone and its USB cable must be there too.
  • On your Galaxy S7 you have to enable Developer Options – navigate towards About Phone and from that field tap repeatedly on Built Number: after 7 or 10 taps you should receive the ‘you are a developer’ message.
  • Then, from this newly enabled field you have to check the USB Debugging feature – so just go to ‘menu – > settings – > developer options.
  • More than 50% power should be left on your phone before you start the Dirty Unicorns update operation; otherwise your smartphone can get switched off while you try to apply the Android 8.0 Oreo OS.
  • Note: if a sudden shut down occurs in the middle of the flashing procedure your device can get soft bricked – different malfunctions can cause severe issues within the Android core system.
  • Don’t forget; this tutorial is compatible only with the Samsung Galaxy S7 so don’t use these guidelines if you have a similar or a different Android based device.

How to Install Dirty Unicorns Android 8.1 Oreo custom ROM Firmware on Samsung Galaxy S7

  1. Power on your computer and enable Internet connection.
  2. Next, navigate towards this page and download the Dirty Unicorns custom ROM for you Galaxy S7.
  3. Place the update package on desktop – don’t worry, you will have to transfer this file in a few moments.
  4. Power off your smartphone and then enter recovery mode on your device: you can do that by pressing and holding (simultaneously) the Power, Volume Up and Home buttons.
  5. In recovery initiate the hard reset and also clear app data cache – mainly select ‘wipe data factory reset’ followed by ‘wipe cache partition’ and by ‘wipe dalvik cache’.
  6. After clearing everything, return to main menu of recovery and choose to go back to Android mode.
  7. Now, use the USB cable and connect your smartphone with your computer via USB cable.
  8. Select the Android 8.1 Oreo based Dirty Unicorns .zip package and copy-paste it from your desktop to your smartphone.
  9. The computer is no longer required so you can remove the USB cable now.
  10. Reach recovery mode menu again.
  11. This time, from TWRP recovery tap on Install and then pick up the custom ROM file.
  12. If you’re not using TWRP recovery select ‘install zip from SD card’ followed by ‘choose zip from SD card’.
  13. Follow on-screen prompts and resume the flashing operation.
  14. When done, go to main menu of recovery and select ‘reboot system now’.

Congratulations, you have successfully installed the Dirty Unicorns custom ROM firmware on your Samsung Galaxy S7. Do try the new Android 8.1 Oreo software and tell us how you find the new platform. If you have observations, or problems to share with other users that are ready to use this step by step update tutorial, don’t hesitate and get in touch with us through the comments field from below. Enjoy.

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